Improvement in latches



NU'ivrrnn STATES' PATENT Urraca.

JOSEPH KAYE, JIM W. KAYE, AND WALTER K. KAYE, OF KIRKSTALL, LEEDS,

- COUNTY OF YORK, GREAT BRITAIN.

INI PROVEM ENT IN LATCHES.

Specification forming part of Letters Patent )10.219,485, datedSeptember 9, 1879 application filed December 20, 1878; patented inEngland, December 22, 1877.

To all whom it 'may concern Be it known that We, JosEPH KAYE, JIMWAINWRIGHT KAYE, and WALTER KELITA KAYE, of vKirkstall, Leeds, in thecounty of York, in the Kingdom of Great Britain and Ireland, haveinvented a new and useful lmprovement for Fastening and UnfasteningDoors, Windows, Ste., of which the following is a specification.

The object of our invention, for which Letters Patent No. 4,873 weregranted to us in England, December 22, 1877, is to make a de vice byWhich doors, gates, lids, and otherlike objects can be readilyT fastenedand un fastened, the main Vfeature of the' invention being thecombination, in a lock or other fastening, of a pivoted latch, anindependent pivoted lever for operating the same, and a spring actingdirectly on the said latch in the manner described hereinafter,reference being had to the accompanying drawings, in which- Figure l isa sectional plan of part of a door and door-frame with our improvedfastening and releasing device; Fig. 2, a front view o f Fig. 1, showingpart of the door and doorframe in section; Figs. 3, 4, and 5, views ofdetached portions of the invention 5 and Figs. 6 and 7, viewsillustrating the application of our invention to a cupboard-fastener.

This invention is an improvement on the class of latches illustrated inImrays English Patent No. 1,16() of 1871, in which a pivotedlatchsecurely connected to an operating-lever is combined with a springacting on an arm of said lever.

1n Figs. 1, 2, 3,4,and 5 of the accompanyying drawings, a represents theshell or casing' of our improved lock fitted in the door A, and to thiscasing is pivoted the latch b by a pin, c, a spring acting directly onthe latch, so that a port-ion of it shall project through the frontedge, d," of the casing and into the keeper f, secured to the door-frameB.

A spiral spring, j, in the present instance, acts on the pivoted latchthrough the medium of a guide-rod, w, the point of which iits in arecess in the said latch. l

A lever, h, is pivoted to the casing, one arm of this lever bearingagainst a projection, h',

on the latch, and the other arm against a projection or collar, m, onthe knob-spindle 7c, to which are secured knobs o o', the latter beingat such a distance apart that the spindle can have a limitedlongitudinal play through the door. fi

It will be seen that the arm of the lever h, which bears against aprojection, L, on the latch, is not secured to the latch in any way, butis capable of being` moved independentlyY thereof, the object of thisbeing to allow the catch to have a free and unobstructed movement inwardwhen the door is closed, and to permit the latch and other parts of thelock to be put together and taken apart and replaced more readily thanif the parts were connected together.

By arranging the spring to act directly on the latch in the mannerdescribed We obtain a direct and positive action of the latch.

On pulling the knob'o, or pushing the knob 0 in the direction of thearrow, Fig. 1, the collar m on the spindle Will so operate the lever hthat the latch will be turned on its pivot and 'freed from the keeper,when the door can be opened.

On closing the door, by simply pulling the knob of or pushing the knobo, or the door itself, the pivoted latch will resume its former positionin the keeper. p

We prefer to cut a screw-thread in the spindle 7c, as shown in Fig. 4,for the nuts p, which serve to maintain the knobs ata properdistanceapart, the nuts being secured after adjustment by keys adapted togrooves in the spindle as well as in the said nuts.

in the usual manner, but are made by prefer ence as shown in Fig. 1, andprovided with guide-plates for the spindle.

The keeper f is preferably provided with a roller, c, to insure the easyWithdrawal of the pivoted latch. (See Figs. 1 and 2.)

Our invention may be applied to different kinds of locks and fastenings.In Figs. 6 and 7, for instance, it is illustrated as applied to afastening for a cupboard-door, in a manner which will be readilyunderstood without eX planation, aknob projectingthrough the casing y(See Figs. 4L and The roses r ands may be secured to the door 2 l mime@beingin the present instance secured directly to the lever h.

It desired the lever may be operated by means of a key in place or'knobs or projections.

We claim as our invention- 1. The combination, in a lock, of a latchpivoted to the casing,` and a spring` acting,r directly on thel latch toprojectit outwardly with a pivoted lever h, adapted to so act onaprojection on the latch as to withdraw it into the casing, said leverbeing` disconnected from the latch, and with a device for actuating saidpivoted lever, all substantially as set forth.

2. The latch pivoted to the easing and hav- J. W. KAYE. vv. K. KAYE.`

Witnesses WILLIAM WARD, GHAS. GILLIARD.

